Siemens 3SU11500BB101CA0 Pushbutton Switch
Siemens 3SU1150 Series — SPST-NC Momentary Panel Switch
The 3SU11500BB101CA0 is a Siemens round, raised pushbutton in the 3SU1150 series, rated 10A AC/DC with a normally closed (SPST-NC) contact arrangement. Front-panel mount, box-encapsulated.
| Parameter | Value |
|---|---|
| Actuator Type | Round, Button |
| Circuit | SPST-NC |
| Current Rating | 10A (AC/DC) |
| Color | Black |
| Base Series | 3SU1150 |
| Electrical Life | 10,000,000 Cycles |
| Mechanical Life | 10,000,000 Cycles |
| Mounting | Panel Mount, Front |
| Encapsulation | Box |
| Ingress Protection | IP66/IP67/IP69K |
| Operating Temperature | 25°C ~ 70°C |
| Manufacturer | Siemens |
In-Catalog Comparison — 3SU11500BB101CA0 vs. Similar Siemens Variants
All entries below share the 3SU1150 series base, 10A rating, IP66/IP67/IP69K, front panel mount, and 10-million-cycle life ratings. The variants differ in contact arrangement and actuator color.
| MPN | Circuit | Color | Actuator Type |
|---|---|---|---|
| 3SU11500BB101CA0 (primary) | SPST-NC | Black | Round, Button |
| 3SU11500BB101FA0 | DPST-NO/NC | Black | Round, Button |
| 3SU11500BB101BA0 | SPST-NO | Black | Round, Button |
| 3SU11500BB201CA0 | SPST-NC | Red | Round, Button |
Why they are catalog-similar
These parts occupy the same 3SU1150 raised-button family and share identical mounting geometry, environmental rating (IP66/IP67/IP69K), and endurance figures (10M cycles). The primary differs from the FA0 variant in contact configuration (SPST-NC versus DPST-NO/NC). The BA0 variant shares the same black color but uses a normally open contact. The CA0-red variant holds the same SPST-NC circuit as the primary but introduces a red actuator for stop-function distinction. Circuit arrangement and color are the primary differentiating selection axes within this group.
Integration Notes
- Front-panel mount requires a compatible cutout per the 3SU1150 series enclosure style.
- IP66/IP67/IP69K supports high-pressure wash-down and temporary submersion environments — review enclosure combination for full IP rating.
- Operating temperature range 25°C to 70°C suits typical enclosure interiors in climate-controlled facilities.
Engineering Verification Checklist
- Confirm circuit: SPST-NC required for the specific safety function
- Verify actuator color matches functional labeling requirement
- Check front-panel cutout and bezel compatibility for raised-button style
- Validate IP rating of complete assembly (device + enclosure)
- Confirm applied voltage and current do not exceed 10A AC/DC rating
- Verify ambient temperature at enclosure stays within 25°C to 70°C range
- Confirm panel thickness within series specification
FAQ
What contact arrangement does the 3SU11500BB101CA0 use? It is SPST-NC (single-pole, single-throw, normally closed). The contact is open at rest and closes momentarily when the actuator is pressed.
Can I use a black 3SU1150 variant with a different circuit configuration in place of the 3SU11500BB101CA0? The black variants include SPST-NC (primary), DPST-NO/NC, and SPST-NO configurations. Only the SPST-NC matches the primary part's contact function — substitution with a different contact arrangement must be validated by the designer.
Does the 3SU11500BB201CA0 serve as an alternate for the 3SU11500BB101CA0? The 3SU11500BB201CA0 shares the SPST-NC contact arrangement and all other key specs but uses a red actuator. It is catalog-similar but not an OEM-approved substitute; evaluate color and labeling requirements before selection.